Illinois · Retail Power Marketer
Energy Harbor Corp.
9.95¢ per kWh, energy only, EIA-861 2025. Average bill $77.01 at 773.7 kWh a month, across 11,072 customers on that row.
Illinois averaged 17.67¢/kWh and $126.59 a month. The United States averaged 17.23¢/kWh and $150.68. State and national figures come from EIA's Average Bill file.
Revenue divided by sales, EIA-861 Sales to Ultimate Customers, 2025, released October 7, 2026. Texas wires utilities come from the Delivery Companies file. The price and bill use energy only service. Customer count: 11,072, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$99.50
9.95¢/kWh × 1,000 kWh. Energy only residential average, EIA-861 2025. The customer charge is already folded into this average, so it stands beside a tariff total rather than being added to it.
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 6.16¢ | $50.23 | 815.8 | 148,393 |
| 2016 | 6.26¢ | $51.33 | 819.6 | 85,857 |
| 2017 | 6.30¢ | $44.88 | 712.5 | 34,898 |
| 2018 | 6.48¢ | $78.20 | 1,205.8 | 2,044 |
| 2019 | 6.47¢ | $63.08 | 975.6 | 2,576 |
| 2020 | 7.16¢ | $57.05 | 797.2 | 2,430 |
| 2021 | 5.22¢ | $41.25 | 789.6 | 43,349 |
| 2022 | 5.99¢ | $44.30 | 740.0 | 90,824 |
| 2023 | 8.38¢ | $59.74 | 713.0 | 120,657 |
| 2024 | 8.97¢ | $67.20 | 749.1 | 149,006 |
| 2025 | 9.95¢ | $77.01 | 773.7 | 11,072 |
EIA-861, 2015–2025, using the same service type as the 2025 figure. A blank year means that service was not in the file.
Counties
EIA's 2025 service-territory file does not list counties for this utility.
EIA-861 Service Territory, 2025. A listed county is the county EIA recorded. It does not mean every address in the county is served. Open this utility in the bill calculator · Rate history tool